Answer:
x = 21
Step-by-step explanation:
The 2 angles form a straight angle and are supplementary, thus
7x + 9 + 2x - 18 = 180, that is
9x - 9 = 180 ( add 9 to both sides )
9x = 189 ( divide both sides by 9 )
x = 21
Answer:
320 Customers took the survey
Step-by-step explanation:
Imagine that the class only had 4 students (unrealistic most likely, but small numbers help much better I think)
If we had 4 students and 3 were boys, then 4-3 = 1 girl is in the class. This makes the ratio of boys to girls be 3 to 1. In other words, there are 3 times as many boys compared to girls.
Divide the number of girls (1) over the number of students total (4) to get 1/4 = 0.25 = 25%
<h3>Answer: 25%</h3>
Answer:
Volume of a cube with side length 1/3 of a meter = 1/27m^3
Step-by-step explanation:
Let
1 meter = m
V = s^3
Where,
V= volume of a cube
s= side length
s = 1/3 of a meter
= 1/3 × m
= 1/3m
V = s^3
= 1/3^3
= 1/3m * 1/3m * 1/3m
V = 1/27m^3
Volume of a cube with side length 1/3 of a meter = 1/27m^3
